RX7freak08

This is another replay to my other problem I have cleaned the fuel injectors, I have cleaned the carbon out of the intake and the throttle body, I have changed out the ignition coils, I have new spark plugs, a good bigger better battery, and i changed out the starter. What happens is that i connect the battery and you know that when you connect it you hear the crank angle sensor turn on well i put the battery on and nothing happens. When i get in the car I put the key in and I turn it on where the electricity comes through the car and i hear the angle censor come on then and i turn the key to the start position and all i hear is a little buzzing sound it is really hard to hear and my car doesn't even try to start. Please help me if you can I'm having trouble with this. It is a 87 non turbo Rx7 13B injected.